CN114953730A - Method, device and equipment for calibrating code wheel pulse signal of printing system and storage medium - Google Patents
Method, device and equipment for calibrating code wheel pulse signal of printing system and storage medium Download PDFInfo
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- 238000007639 printing Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000007641 inkjet printing Methods 0.000 claims abstract description 21
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a method, a device and equipment for calibrating a code wheel pulse signal of a printing system and a storage medium, and relates to the technical field of ink-jet printing. The method comprises the steps that an initial pulse signal is output to a first driving board card through a control code disc; controlling the first driving board card to output a first pulse signal to the second driving board card after receiving the initial pulse signal, controlling the second driving board card to output a second pulse signal to the third driving board card after receiving the first pulse signal, and so on, and controlling the Nth driving board card to output an Nth pulse signal after receiving the Nth-1 pulse signal; and then according to the pulse signals output by the driving board cards, determining the corresponding calibration pulse number of each driving board card, and calibrating the code disc pulse signals input to each driving board card, so that the driving board cards connected in a cascade mode in the printing system can simultaneously trigger the nozzles to perform ink jet printing, and the printing quality is ensured.
Description
Technical Field
The invention relates to the field of ink-jet printing, in particular to a method, a device, equipment and a storage medium for calibrating a code wheel pulse signal of a printing system.
Background
With the development of printing technology, the number of the nozzles installed on one printing device is more and more, and the driving capability of one driving board card in the printing system is limited, so that a multi-board card system is produced at the right moment. The multi-board system is characterized in that a plurality of driving boards are used for driving a plurality of nozzles, namely the driving boards are spliced, each driving board drives a certain number of nozzles, and in order to ensure that a plurality of nozzles driven by the multi-board system can output printing data simultaneously, the driving boards need to share one code disc. A coded disc in the ink-jet printing equipment is used for positioning and printing image data, the paper feeding distance is determined through a pulse signal output by the coded disc during printing, and a board card is driven to trigger a spray head to perform ink-jet printing according to the received pulse signal.
In order to reduce the wiring complexity, the code wheel and each driving board are often connected together in a cascade manner as shown in fig. 1. However, this cascading method may cause signal delay. During printing, a code disc outputs pulse signals to the driving board cards, and ideally, the code disc pulse signals received by all the driving board cards are expected to be consistent, so that the condition that a plurality of driving board cards trigger the spray heads to start ink jet printing at the same time can be ensured. In practical situations, when a coded disc pulse signal passes through one driving board card and is input into the next driving board card, a certain delay is inevitably brought, and the delay of the coded disc pulse signal received by the driving board card at the tail end of the cascade is larger, so that the time for triggering the nozzles by each driving board card to start ink jet printing is inconsistent, and the printing quality is influenced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method, an apparatus, a device and a storage medium for calibrating a code wheel pulse signal of a printing system, so as to solve a problem that trigger times of printing by nozzles are inconsistent due to code wheel pulse signal delay caused by a cascade connection manner in a multi-board system.
In a first aspect, an embodiment of the present invention provides a method for calibrating a code wheel pulse signal of a printing system, where the printing system includes a code wheel and N drive boards, where N is a natural number greater than 1, the N drive boards are connected in a cascade manner, an output end of the code wheel is connected to an input end of a first drive board, an output end of the first drive board is connected to an input end of a second drive board, and so on, an output end of an N-1 th drive board is connected to an input end of an N-th drive board, and each drive board drives a plurality of nozzles, where the method includes:
controlling the coded disc to output an initial pulse signal to the first driving board card;
after the first driving board card receives the initial pulse signal, outputting a first pulse signal to a second driving board card; after receiving the first pulse signal, the second driving board card outputs a second pulse signal to a third driving board card; by analogy, the Nth driving board card outputs the Nth pulse signal after receiving the Nth-1 th pulse signal;
acquiring the number J of calibration pulses of the Mth driving board card according to the time delay of the Nth pulse signal relative to the first pulse signal and the cascade sequence of the Mth driving board card M Or acquiring the number P of calibration pulses of the Mth driving board card according to the time delay of the Nth pulse signal relative to the Mth pulse signal M Wherein M is 1,2 … … N;
during printing, a code wheel pulse signal input to the Mth drive board card is inserted into J M Or P M A preset pulse is calibrated.
Preferably, after receiving the initial pulse signal, the first driving board outputs a first pulse signal to the second driving board; after receiving the first pulse signal, the second driving board card outputs a second pulse signal to a third driving board card; by analogy, the output of the nth pulse signal after the nth drive plate card receives the nth-1 pulse signal comprises:
after the first driving board card receives the initial pulse signal, adding a preset counting pulse to the initial pulse signal to generate a first pulse signal, and outputting the first pulse signal to the second driving board card;
after the second driving board card is controlled to receive the first pulse signal, adding one preset counting pulse to the first pulse signal to generate a second pulse signal, and outputting the second pulse signal to the third driving board card;
and analogizing in sequence, after the Nth driving board card is controlled to receive the Nth pulse signal, adding one preset counting pulse to the Nth pulse signal, generating and outputting the Nth pulse signal.
Preferably, the method further comprises:
and acquiring the number of the drive board cards according to the preset counting pulse number of the phase difference between the initial pulse signal and the Nth pulse signal.
Preferably, the method further comprises:
and acquiring the cascade sequence of the Mth driving board card according to the preset counting pulse number of the phase difference between the initial pulse signal and the Mth pulse signal, wherein M is 1 and 2 … … N.
Preferably, the calibration pulse number J of the mth drive board card is obtained according to the delay of the nth pulse signal relative to the first pulse signal and the cascade sequence of the mth drive board card M The method comprises the following steps:
acquiring a time difference value between the first pulse of the first pulse signal and the first pulse of the Nth pulse signal, and recording the time difference value as a maximum time difference value;
acquiring the number of preset pulses with the difference between the first pulse of the first pulse signal and the first pulse of the Nth pulse signal according to the maximum time difference value and the period value of the preset pulses, and recording the number as the maximum difference preset pulse number;
acquiring the number J of calibration pulses of the Mth driving board card according to the cascade sequence of the Mth driving board card, the maximum phase difference preset pulse number and the number of the driving board cards M Wherein M is 1,2, … …, N.
Preferably, the maximum phase difference is preset by the number of pulses and the number of driving boards according to the cascade order of the Mth driving board cardCounting, and acquiring the number J of calibration pulses of the Mth drive board card M The method comprises the following steps: obtaining the M calibration pulse number according to the following formula:
J M (N-M) x (B/N), where B is the maximum phase difference preset number of pulses, M is the serial number of the cascade sequence of the mth drive board card, N is the number of the drive board cards, J is M The number of calibration pulses J for the Mth drive board card M ，M＝1,2，……，N。
Preferably, the number P of calibration pulses of the mth drive board card is obtained according to the delay of the nth pulse signal relative to the mth pulse signal M The method comprises the following steps:
acquiring a time difference value between the first pulse of the Nth pulse signal and the first pulse of the Mth pulse signal; wherein M is 1,2, … …, N;
acquiring the number of preset pulses of the phase difference between the first pulse of the Mth pulse signal and the first pulse of the Mth pulse signal according to the time difference value and the period value of the preset pulses, and recording the number of the preset pulses as the number P of the calibration pulses of the Mth driving board card M 。
In a second aspect, an embodiment of the present invention provides a printing method, including:
the code wheel pulse signal calibration method comprises the steps that code wheel pulse signals input to a driving board card are calibrated according to the code wheel pulse signal calibration method of any one of the first aspects;
and the driving board card drives the spray head to perform ink jet printing according to the calibrated code wheel pulse signal.
In a third aspect, an embodiment of the present invention provides a device for calibrating a code wheel pulse signal of a printing system, where the device includes:
the coded disc output module is used for controlling the coded disc to output an initial pulse signal to the first driving board card;
the pulse signal output module is used for outputting a first pulse signal to the second driving board card after the first driving board card receives the initial pulse signal; after receiving the first pulse signal, the second driving board card outputs a second pulse signal to a third driving board card; by analogy, the Nth driving board card outputs the Nth pulse signal after receiving the Nth-1 th pulse signal;
a pulse calibration number acquisition module for acquiring the calibration pulse number J of the Mth drive board card according to the time delay of the Nth pulse signal relative to the first pulse signal and the cascade order of the Mth drive board card M Or acquiring the number P of calibration pulses of the Mth driving board card according to the time delay of the Nth pulse signal relative to the Mth pulse signal M Wherein M is 1,2 … … N;
a calibration module for inserting J code wheel pulse signal input to the Mth drive board card during printing M Or P M A preset pulse is calibrated.
In a fourth aspect, an embodiment of the present invention provides a device for calibrating a code wheel pulse signal of a printing system, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of the first aspect of the embodiments described above.
In summary, the invention has the following beneficial effects:
according to the method, the device, the equipment and the storage medium for calibrating the code disc pulse signals of the printing system, the first drive plate card is controlled to output the first pulse signals to the second drive plate card after receiving the initial pulse signals, the second drive plate card is controlled to output the second pulse signals to the third drive plate card after receiving the first pulse signals, and the like, the Nth drive plate card is controlled to output the Nth pulse signals after receiving the N-1 th pulse signals, then the corresponding calibration pulse number of each drive plate card is determined according to the time delay of the pulse signals output by each drive plate card, and the code disc pulse signals input to each drive plate card are calibrated, so that the drive plate cards connected in a cascade mode in the printing system can trigger nozzles to jet ink and print at the same time, and the printing quality is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without any creative effort, other drawings may be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.
Fig. 1 is a schematic diagram of a cascade connection mode of a code wheel and a plurality of driving boards in a printing system according to the background art of the present invention.
FIG. 2 is a flowchart illustrating a method for calibrating a code wheel pulse signal of a printing system according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an initial pulse signal and pulse signals output by a plurality of driving boards according to an embodiment of the present invention.
Fig. 4 is an exemplary diagram of another initial pulse signal and pulse signals output by a plurality of driving boards according to an embodiment of the invention.
FIG. 5 is a diagram illustrating a time difference between the first pulse of the initial pulse signal and the first pulse of the Nth pulse signal and a predetermined pulse period according to an embodiment of the invention.
FIG. 6 is a schematic structural diagram of a code wheel pulse signal calibration device of a printing system according to an embodiment of the present invention.
FIG. 7 is a schematic structural diagram of a code wheel pulse signal calibration device of a printing system according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Example one
Referring to fig. 2, an embodiment of the present invention provides a method for calibrating a code wheel pulse signal of a printing system, which is applied to an inkjet printing apparatus, preferably an Onepass printer or a scanning printer. As shown in fig. 1, a printing system of an inkjet printing apparatus includes N driving boards, where N is a natural number greater than or equal to 1, the N driving boards are connected in a cascade manner, the driving board connected to a code wheel is denoted as a first driving board, the driving board connected to the first driving board is denoted as a second driving board, and so on, and the last driving board is denoted as an nth driving board, where each driving board drives a plurality of nozzles.
The method for calibrating the code wheel pulse signal of the printing system specifically comprises the following steps:
s1: controlling the coded disc to output an initial pulse signal to the first driving board card;
specifically, the printing system controls the code disc output interface to output an initial pulse signal to the first driving board card connected with the code disc, where the number of pulses, the period value, and the amplitude of the initial pulse signal may be defined according to the actual application, and is not limited herein, but it should be noted that the initial pulse signal is not a pulse signal output by the code disc when the printing apparatus performs printing, and is input to the driving board card, and cannot trigger the nozzle to perform inkjet printing.
S2: controlling the first drive board card to output a first pulse signal to a second drive board card after receiving the initial pulse signal, controlling the second drive board card to output a second pulse signal to a third drive board card after receiving the first pulse signal, and so on, and controlling the Nth drive board card to receive an Nth pulse signal output after receiving the N-1 th pulse signal;
the first driving board card outputs a first pulse signal to a second driving board card connected with the first driving board card after receiving an initial pulse signal output by the coded disc, the second driving board card outputs a second pulse signal to a third driving board card connected with the second driving board card after receiving the first pulse signal, and the like until the Nth driving board card receives an N-1 pulse signal output by the N-1 driving board card, and then the Nth pulse signal is output.
In one embodiment, the initial pulse signal is not changed after entering the first driving board card, and is output to the second driving board card by the first driving board card, and after the second driving board card receives the pulse signal output by the first driving board card, the pulse signal is not changed at all, and is output to the third driving board card by the second driving board card until the pulse signal is input to the nth driving board card. However, since the signals are transmitted step by step, a delay is inevitably generated, so that the first pulse signal has a certain delay relative to the initial pulse signal, the second pulse signal also has a certain delay relative to the first pulse signal, and so on, it can be known that the nth pulse signal has a larger delay relative to the initial pulse signal. As shown in fig. 3.
In another implementation, as shown in fig. 4, after the first driving board card receives the initial pulse signal, a preset counting pulse is added on the basis of the initial pulse signal to generate a first pulse signal, and the first pulse signal is output to the second driving board card; after the second drive board card receives the first pulse signal, a preset counting pulse is continuously added on the basis of the first pulse signal, and the preset counting pulse is output to the third drive board card. And in turn, after the Nth driving board card receives the (N-1) th pulse signal, adding a preset counting pulse to the (N-1) th pulse signal to generate and output an Nth pulse signal. The nth pulse signal is N preset count pulses more than the initial pulse signal.
In one implementation, when the number of the cascaded driving boards is large, and it is impossible to know how many driving boards (i.e., specific values of N) are cascaded in the printing system or the number of the driving boards is not counted manually, the number of the cascaded driving boards in the printing system can be obtained according to the preset counting pulse number of the difference between the initial pulse signal and the nth driving pulse signal.
In another implementation, if the specific cascade sequence of a certain drive board card is not determined, the pulse signal output by the drive board card may be compared with the initial pulse signal to obtain the number of preset counting pulses with a phase difference, so that the cascade sequence number of the drive board card may be known. Or comparing the pulse signals output by the driving board cards with the initial pulse signals in sequence to obtain the cascade serial number of each driving board card, namely obtaining the cascade sequence of the Mth driving board card according to the preset counting pulse number of the phase difference between the initial pulse signals and the Mth pulse signals, wherein M is 1,2 … … N.
S3: acquiring the number J of calibration pulses of the Mth driving board card according to the time delay of the Nth pulse signal relative to the first pulse signal and the cascade sequence of the Mth driving board card M Or acquiring the number P of calibration pulses of the Mth driving board card according to the time delay of the Nth pulse signal relative to the Mth pulse signal M Wherein M is 1,2 … … N;
because the first pulse signal has a delay with respect to the initial pulse signal and the second pulse signal has a delay with respect to the first pulse signal, … …, the nth pulse signal has a delay with respect to the N-1 th pulse signal. It can be known that the delay of the last pulse signal is the largest, that is, the delay of the code wheel pulse signal received by the last drive board card of the plurality of drive board cards connected in the cascade manner is the largest relative to the previous drive board card, and in order to ensure that all the nozzles can be triggered simultaneously, it is required to ensure that the time points of the code wheel pulse signals input to the drive board cards triggering the nozzles to perform inkjet printing are consistent. The code disc pulse signals input to the last drive board card (the Nth drive board card) are taken as a reference, different numbers of preset pulses (the added preset pulses do not trigger the spray nozzle to spray ink) are added before the pulse of triggering the spray nozzle to spray ink to the code disc pulse signals input to the Nth drive board card (the Nth drive board card) of the first drive board card, which is equivalent to the fact that the code disc pulse signals from the Nth drive board card to the first drive board card are respectively calibrated, and therefore all the drive board cards can trigger the spray nozzle to spray ink to print.
In one embodiment, the calibration pulse number of the code disc pulse signal is determined by acquiring the preset pulse number of the phase difference between the first pulse of the first pulse signal and the first pulse of the Nth pulse signal, the number of the driving board cards and the cascade sequence of the driving board cards. Specifically, the calibration pulse number J of the Mth driving board card is obtained according to the time delay of the Nth pulse signal relative to the first pulse signal and the cascade sequence of the Mth driving board card M The method comprises the following steps:
s31: acquiring a time difference value between the first pulse of the first pulse signal and the first pulse of the Nth pulse signal, and recording the time difference value as a maximum time difference value;
s32: acquiring the number of preset pulses with the difference between the first pulse of the first pulse signal and the first pulse of the Nth pulse signal according to the maximum time difference value and the period value of the preset pulses, and recording the number as the maximum difference preset pulse number;
as shown in fig. 5, if the time difference between the first pulse of the first pulse signal and the first pulse of the nth pulse signal is T, and the preset pulse period value is T, the preset number of pulses of the difference between the first pulse of the first pulse signal and the first pulse of the nth pulse signal is calculated as B ═ T/T |, and B is the maximum difference preset number of pulses.
S33: acquiring the number J of calibration pulses of the Mth driving board card according to the cascade sequence of the Mth driving board card, the maximum phase difference preset pulse number and the number of the driving board cards M Wherein M ═ 1,2, … …, N;
after the maximum phase difference preset pulse number is obtained, the calibration pulse number of the code disc pulse signal input to each driving board card is obtained according to the number of the driving board cards and the cascade sequence (represented by the serial number of the driving board cards). Specifically, it is calculated by the following formula:
J M ＝(N-M)×(B/N)………………(1)
wherein B is the maximum phase difference preset pulse number, M is the secondM number of drive boards, N number of drive boards, J M The number of calibration pulses of the mth drive board is M, which is 1,2, … …, N.
In another embodiment, the first to nth pulse signals, that is, all the pulse signals, are obtained, and the number of calibration pulses of the code wheel signal input to each drive board is obtained by comparing the pulse signal output by each drive board with the nth pulse signal. Specifically, the number of calibration pulses P of the Mth driving board card is obtained according to the time delay of the Nth pulse signal relative to the Mth pulse signal M The method comprises the following steps:
s300: acquiring a time difference value between the first pulse of the Nth pulse signal and the first pulse of the Mth pulse signal; wherein M is 1,2, … …, N;
s301: acquiring the number of preset pulses of the phase difference between the first pulse of the Mth pulse signal and the first pulse of the Mth pulse signal according to the time difference value and the period value of the preset pulses, and recording the number of the preset pulses as the number P of the calibration pulses of the Mth driving board card M 。
For example, let t be the time difference between the first pulse of the Nth pulse signal and the first pulse of the Mth pulse signal m If a predetermined pulse period is T, the number of pulses between the first pulse of the N-th pulse signal and the first pulse of the M-th pulse signal is T m The value of/T |, namely the number of the calibration pulses of the Mth driving board card is P M ＝|t m and/T |. M takes the values 1,2, … … and N respectively.
S4: during printing, a code wheel pulse signal input to the Mth drive board card is inserted into J M Or P M A preset pulse is calibrated.
In one embodiment, the number of calibration pulses J obtained according to steps S31-S33 M And the code wheel pulse signal input to the drive board card is calibrated.
Specifically, from equation (1), we can obtain:
J 1 (N-1) × (B/N), J is inserted before the code wheel pulse signal input to the first drive board 1 The pulse of each preset pulse enables the first drive board card and the Nth drive board card to triggerThe time of ink-jet printing of the spray heads is consistent.
J 2 (N-2) × (B/N), J is inserted before the code wheel pulse signal input to the second drive board 2 And the second driving board card and the Nth driving board card trigger the time of ink jet printing of the spray head to be consistent by the preset pulse.
……
J N-1 And B/N preset pulses are inserted before the coded disc pulse signal input to the N-1 drive board card, so that the time for triggering the nozzle to jet ink and print by the N-1 drive board card and the N drive board card is consistent.
J N 0; namely, the code wheel pulse signal input to the Nth driving board card does not need to be calibrated.
In this embodiment, only the first pulse signal and the nth pulse signal need to be acquired, the number of preset pulses with a difference between the first pulses of the two pulse signals is determined by averaging the number of preset pulses with a difference between the first pulses of the two pulse signals, and then the number of calibration pulses of the code disc pulse signals input to each driving board card is determined according to the cascade order of the driving board cards.
In another embodiment, the number of calibration pulses P obtained in steps S300-S301 is used as the reference M To calibrate the code wheel pulse signal input to the drive board card, i.e. adding P before the code wheel pulse signal input to the Mth drive board card M And (4) presetting pulses to enable the time for triggering the nozzles to jet ink and print by the Mth driving board card and the Nth driving board card to be consistent.
It is worth mentioning that the number of calibration pulses P M Relative calibration pulse number J M It is more accurate because P M Are obtained in a one-by-one comparison manner. However, from the perspective of printing effect, the number of calibration pulses is obtained through the two methods, so that the code wheel pulse signals input to the driving board card are calibrated, and the printing effect obtained after printing is not very different.
In summary, in the method for calibrating code disc pulse signals of a printing system provided in the embodiment of the present invention, the first driving board is controlled to output the first pulse signal to the second driving board after receiving the initial pulse signal, the second driving board is controlled to output the second pulse signal to the third driving board after receiving the first pulse signal, and so on, the nth driving board is controlled to output the nth pulse signal after receiving the N-1 th pulse signal, then the calibration pulse number corresponding to each driving board is determined according to the pulse signal output by each driving board, and the code disc pulse signal input to each driving board is calibrated, so that each driving board connected in a cascade manner in the printing system can simultaneously trigger a nozzle to perform inkjet printing, and the printing quality is ensured.
Example two
The embodiment of the invention also provides a printing method, which comprises the following steps:
according to the code disc pulse signal calibration method of the first embodiment, the code disc pulse signal input to the driving board card is calibrated; and the driving board card drives the spray head to perform ink jet printing according to the calibrated code wheel pulse signal.
Specifically, after the corresponding calibration pulse number of each driving board card is obtained according to the code wheel pulse signal calibration method in the first embodiment, during printing, a preset pulse with the corresponding calibration pulse number is inserted before the code wheel pulse signal input to each driving board card, and then the nozzle is driven to perform ink jet printing according to the calibrated code wheel pulse signal.
According to the printing method provided by the embodiment of the invention, the code wheel pulse signals input to the driving board cards are calibrated, so that the driving board cards connected in a cascade mode in the printing system can trigger the nozzles to perform ink jet printing simultaneously, and the printing quality is ensured.
EXAMPLE III
Referring to fig. 6, an embodiment of the present invention provides a code wheel pulse signal calibration apparatus 20 for a printing system, where the apparatus 20 includes:
the coded disc output module 21 is used for controlling the coded disc to output an initial pulse signal to the first driving board card;
the pulse signal output module 22 is configured to output a first pulse signal to the second drive board card after the first drive board card receives the initial pulse signal; after receiving the first pulse signal, the second driving board card outputs a second pulse signal to a third driving board card; by analogy, the Nth driving board card outputs the Nth pulse signal after receiving the Nth-1 th pulse signal;
a pulse calibration number obtaining module 23, configured to obtain the number of calibration pulses J of the mth driving board according to the delay of the nth pulse signal relative to the first pulse signal and the cascade order of the mth driving board M Or acquiring the number P of calibration pulses of the Mth driving board card according to the time delay of the Nth pulse signal relative to the Mth pulse signal M Wherein M is 1,2 … … N;
a calibration module 24 for inserting J code wheel pulse signals input to the Mth drive board card during printing M Or P M A preset pulse is calibrated.
According to the code disc pulse signal calibration device for the printing system, the first drive board card is controlled to output a first pulse signal to the second drive board card after receiving an initial pulse signal, the second drive board card is controlled to output a second pulse signal to the third drive board card after receiving the first pulse signal, and the like, the Nth drive board card is controlled to output an Nth pulse signal after receiving an N-1 th pulse signal, then the corresponding calibration pulse number of each drive board card is determined according to the pulse signal output by each drive board card, and the code disc pulse signal input to each drive board card is calibrated, so that the drive board cards connected in a cascade mode in the printing system can simultaneously trigger a sprayer to perform ink jet printing, and the printing quality is guaranteed.
Example four
In addition, the method for calibrating the code wheel pulse signal of the printing system in the embodiment of the invention described in connection with fig. 7 can be realized by a device for calibrating the code wheel pulse signal of the printing system. FIG. 7 is a schematic diagram showing a hardware structure of a code wheel pulse signal calibration device of a printing system according to an embodiment of the present invention.
The printing system code wheel pulse signal calibration apparatus may include a processor 301 and a memory 302 having stored computer program instructions.
In particular, the processor 301 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
The processor 301 implements any of the above described printing system codewheel pulse signal calibration methods by reading and executing computer program instructions stored in the memory 302.
In one example, the printing system code wheel pulse signal calibration device may also include a communication interface 303 and a bus 310. As shown in fig. 7, the processor 301, the memory 302, and the communication interface 303 are connected via a bus 310 to complete communication therebetween.
The communication interface 303 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiment of the present invention.
In summary, according to the method, the device, and the equipment for calibrating the code wheel pulse signal of the printing system, namely the storage medium, provided by the embodiments of the present invention, by controlling the first drive board to output the first pulse signal to the second drive board after receiving the initial pulse signal, controlling the second drive board to output the second pulse signal to the third drive board after receiving the first pulse signal, and so on, controlling the nth drive board to output the nth pulse signal after receiving the N-1 th pulse signal, then determining the corresponding calibration pulse number of each drive board according to the pulse signal output by each drive board, and calibrating the code wheel pulse signal input to each drive board, thereby implementing that each drive board connected in a cascade manner in the printing system can trigger the nozzles to perform inkjet printing at the same time, and ensuring the printing quality.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (10)
1. A method for calibrating a code disc pulse signal of a printing system is characterized in that the printing system comprises a code disc and N driving board cards, wherein N is a natural number greater than 1, the N driving board cards are connected in a cascade mode, the output end of the code disc is connected with the input end of a first driving board card, the output end of the first driving board card is connected with the input end of a second driving board card, and so on, the output end of an N-1 th driving board card is connected with the input end of an N driving board card, and each driving board card drives a plurality of nozzles, and the method comprises the following steps:
controlling the coded disc to output an initial pulse signal to the first driving board card;
after the first driving board card receives the initial pulse signal, outputting a first pulse signal to a second driving board card; after receiving the first pulse signal, the second driving board card outputs a second pulse signal to a third driving board card; by analogy, the Nth driving board card outputs the Nth pulse signal after receiving the Nth-1 th pulse signal;
acquiring the number J of calibration pulses of the Mth driving board card according to the time delay of the Nth pulse signal relative to the first pulse signal and the cascade sequence of the Mth driving board card M Or acquiring the number P of calibration pulses of the Mth driving board card according to the time delay of the Nth pulse signal relative to the Mth pulse signal M Wherein M is 1,2 … … N;
during printing, a code wheel pulse signal input to the Mth drive board card is inserted into J M Or P M A preset pulse is calibrated.
2. The method for calibrating a code wheel pulse signal of a printing system according to claim 1, wherein after receiving the initial pulse signal, the first drive board card outputs a first pulse signal to a second drive board card; after receiving the first pulse signal, the second driving board card outputs a second pulse signal to a third driving board card; by analogy, the output of the nth pulse signal after the nth drive plate card receives the nth-1 pulse signal comprises:
after the first driving board card receives the initial pulse signal, adding a preset counting pulse to the initial pulse signal to generate a first pulse signal, and outputting the first pulse signal to the second driving board card;
after the second driving board card is controlled to receive the first pulse signal, adding one preset counting pulse to the first pulse signal to generate a second pulse signal, and outputting the second pulse signal to the third driving board card;
and analogizing in sequence, after the Nth driving board card is controlled to receive the Nth pulse signal, adding one preset counting pulse to the Nth pulse signal, generating and outputting the Nth pulse signal.
3. The printing system code wheel pulse signal calibration method of claim 2, further comprising:
and acquiring the number of the drive board cards according to the preset counting pulse number of the phase difference between the initial pulse signal and the Nth pulse signal.
4. The printing system codewheel pulse signal calibration method of claim 2, further comprising:
and acquiring the cascade sequence of the Mth driving board card according to the preset counting pulse number of the phase difference between the initial pulse signal and the Mth pulse signal, wherein M is 1 and 2 … … N.
5. The method for calibrating code disc pulse signals of printing system according to any one of claims 1 to 4, wherein the calibration pulse number J of the Mth driving board card is obtained according to the time delay of the Nth pulse signal relative to the first pulse signal and the cascade sequence of the Mth driving board card M The method comprises the following steps:
acquiring a time difference value between the first pulse of the first pulse signal and the first pulse of the Nth pulse signal, and recording the time difference value as a maximum time difference value;
acquiring the number of preset pulses with the difference between the first pulse of the first pulse signal and the first pulse of the Nth pulse signal according to the maximum time difference value and the period value of the preset pulses, and recording the number as the maximum difference preset pulse number;
acquiring the number J of calibration pulses of the Mth drive board card according to the cascade order of the Mth drive board card, the preset number of pulses with the maximum phase difference and the number of the drive board cards M Wherein M is 1,2, … …, N.
6. The method for code wheel pulse signal calibration of a printing system of claim 5, wherein the calibration is performed according to the cascade order of the Mth driving board card,The maximum phase difference is preset with the number of pulses and the number of the driving board cards, and the number J of calibration pulses of the Mth driving board card is obtained M The method comprises the following steps: obtaining the M calibration pulse number according to the following formula:
J M (N-M) x (B/N), where B is the maximum phase difference preset number of pulses, M is the serial number of the cascade sequence of the mth drive board card, N is the number of the drive board cards, J is M The number of calibration pulses J for the Mth drive board card M ，M＝1,2，……，N。
7. The method for calibrating code disc pulse signals of printing system according to any one of claims 1 to 3, wherein the calibration pulse number P of the Mth driving board card is obtained according to the time delay of the Nth pulse signal relative to the Mth pulse signal M The method comprises the following steps:
acquiring a time difference value between the first pulse of the Nth pulse signal and the first pulse of the Mth pulse signal; wherein M is 1,2, … …, N;
acquiring the number of preset pulses of the phase difference between the first pulse of the Mth pulse signal and the first pulse of the Mth pulse signal according to the time difference value and the period value of the preset pulses, and recording the number of the preset pulses as the number P of the calibration pulses of the Mth driving board card M 。
8. A method of printing, the method comprising:
the code disc pulse signal calibration method of any one of claims 1-7, wherein code disc pulse signals input to each drive board card are calibrated;
and each driving board card drives the spray head to perform ink jet printing according to the calibrated code wheel pulse signal.
9. A code wheel pulse signal calibration device of a printing system, which is characterized by comprising:
the coded disc output module is used for controlling the coded disc to output an initial pulse signal to the first driving board card;
the pulse signal output module is used for outputting a first pulse signal to the second driving board card after the first driving board card receives the initial pulse signal; after receiving the first pulse signal, the second driving board card outputs a second pulse signal to a third driving board card; by analogy, the Nth driving board card outputs the Nth pulse signal after receiving the (N-1) th pulse signal;
a pulse calibration number acquisition module for acquiring the calibration pulse number J of the Mth drive board card according to the time delay of the Nth pulse signal relative to the first pulse signal and the cascade order of the Mth drive board card M Or acquiring the calibration pulse number P of the Mth driving board card according to the time delay of the Nth pulse signal relative to the Mth pulse signal M Wherein M is 1,2 … … N;
a calibration module for inserting J code wheel pulse signal input to the Mth drive board card during printing M Or P M A preset pulse is calibrated.
10. A printing system code wheel pulse signal calibration device is characterized by comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of any one of claims 1-7.
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Address after: 518000 a201-a301, building a, Sino German European Industrial Demonstration Park, Hangcheng Avenue, guxing community, Xixiang street, Bao'an District, Shenzhen, Guangdong Patentee after: Shenzhen Hansen Software Co.,Ltd. Address before: 1701, 1703, building C6, Hengfeng Industrial City, 739 Zhoushi Road, Hezhou community, Hangcheng street, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN HOSONSOFT Co.,Ltd. |